Alright, let's work through 2340 times 357 step by step
2340 × 357 = 357 × (2340)
+ 357 × 0 yielding 0
+ 357 × 40 giving us 14280
+ 357 × 300 what gives us 107100
+ 357 × 2000 yielding 714000

= 835380
